Immediately following a left posterior superior alveolar nerve block injection, the patient’s face becomes quickly and visibly swollen on the left side. The immediate treatment should be to
1. apply a cold compress.
2. administer 0.3mg epinepherine (sublingually).
3. apply pressure.
4. refer for immediate medical treatment.
(1) and (3)
(1) (2) (3)
(2) and (4)
(4) only
All of the above.
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